Home / 20,759.87-31,141.40-5,969.94

Finding the Fourth Proportional to 20,759.87, 31,141.40 and 5,969.94

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Solution

The fourth proportional to 20,759.87, 31,141.40 and 5,969.94 is: 8,955.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,759.87 : 31,141.40 = 5,969.94 : x
  2. Step 2: Convert to fraction form
    20,759.87/31,141.40 = 5,969.94/x
  3. Step 3: Cross multiply
    20,759.87x = 31,141.40 × 5,969.94
  4. Step 4: Simplify right side
    20,759.87x = 185,912,299.45
  5. Step 5: Solve for x
    x = 185,912,299.45/20,759.87
  6. Step 6: Final answer
    x = 8,955.37

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.